Lightweight high-rigidity gantry machining center machine base

Abstract

The invention discloses a machine base of a lightweight and high-rigidity gantry machining center. The rib is an inverted W shape, the triangular-shaped tips on both sides of the upper end of the reinforcing rib pass through the top base plate, and the top of the triangular-shaped tip of the reinforcing rib is provided with a top slide rail, and the three ends of the lower end of the reinforcing rib It is connected and fixed with the base plate on the lower side. In the present invention, the double guide rails of the base are supported by inverted W-shaped reinforcing ribs, so that the weight of the moving part workbench and the workpiece processed on the guide rails is dispersed through the reinforcing ribs, and the supporting area and range are reduced from small to small. To the maximum, the inside of the base is like multiple triangular supports, which minimizes the casting stress of the casting. At the same time, through annealing and other artificial aging methods, the residual stress of the casting is eliminated, and the stability of the machine tool is greatly improved; at the same time, the material cost is saved. At the same time increase the rigidity.

Description

technical field [0001] The invention relates to the technical field of machine tool equipment, in particular to a light-weight and high-rigidity gantry machining center base. Background technique [0002] The gantry machining center refers to the machining center where the axis of the spindle is set perpendicular to the workbench. It is mainly suitable for processing large parts. The table moves back and forth), the moving column type (the table is fixed, the gantry moves), the crane type (the table is fixed, the beam moves) and there are many types of gantry machining centers with the above composite forms. The processing characteristics, capabilities, and targeted product processing uses are not exactly the same. [0003] This design belongs to the structure improvement category of machine tool parts in the machinery industry. The base is one of the main components of the main body structure of the Gantry Machining Center (CNC), and is the basis for the movement of the X,...

AI Technical Summary

Problems solved by technology

In order to ensure the rigidity and strength of the base, the traditional CNC milling machine generally adopts the method of thickening, heightening, and encrypting the wall thickness of the base casting and the internal reinforcing ribs. However, due to the material characteristics of gray cast iron, casting defects are prone to occur when the wall thickness is thicker. Moreover, the internal stress will increase, the stability of the casting will deteriorate, and the weight of the casting will increase at the same time, and the cost will be higher

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